NONLINEAR ASSOCIATIONS OF DAILY STRESS REACTIVITY WITH HEALTH AND WELL-BEING

Abstract Research has repeatedly demonstrated that greater affective reactivity to daily stressors is associated with detrimental health outcomes (e.g. inflammation, mortality). However, most research has only considered linear effects, which precludes an examination of whether moderate levels of stress reactivity may be beneficial. Using daily diary data from the National Study of Daily Experiences (N=2,018) we fit multilevel SEMs to simultaneously model daily within-person associations between stress and negative affect (i.e., stress reactivity), and individual differences in the linear and quadratic associations between stress reactivity and life satisfaction, psychological distress, and chronic conditions. Significant quadratic effects were found for each of the three outcomes (estimates=-20.23; 11.49; 20.81, ps<.001, respectively), indicating a U-shaped pattern where both low and high levels of stress reactivity were associated with poorer health, whereas moderate levels of daily stress reactivity predicted better health outcomes. The results suggest that some affective response to daily stressors can be beneficial.

bedtime reported better sleep quality regardless of their evening electronic media use and daytime sedentary behaviors, thereby highlighting the importance of sleep regularity in later life.

DO FRIENDS GET UNDER THE SKIN? DAILY INTERACTIONS AND CARDIOVASCULAR FUNCTIONING AMONG BLACK AND WHITE AMERICANS
Yee To Ng 1 , Sae Hwang Han 2 , Karen Fingerman 3 , and Kira Birditt 4 , 1. UT Austin,Ann Arbor,Michigan,United States,2. University of Texas at Austin,Austin,Texas,United States,3. The University of Texas at Austin, Austin,Texas,United States,4. University of Michigan,Ann Arbor,Michigan,United States Scarce research has examined racial differences in cardiovascular health in the context of social interactions. This study investigated whether (a) friend interactions were associated with better cardiovascular functioning, and (b) such associations vary among Black and White adults. This study employed dual assessment techniquesecological momentary assessments (EMA) and ambulatory physiological assessments-to examine the co-occurrence of social interactions and cardiovascular functioning. Multilevel models revealed no racial differences in ambulatory HRV and frequency of friend interactions throughout the day. Findings revealed a between-person link of friend interactions and better HRV in the overall sample. Racestratified models found a within-person link between friendship interaction and worse HRV and a betweenperson link between friendship interaction and better HRV for Blacks but not for Whites. Findings suggest friend interactions are more salient for Blacks' cardiovascular health and may serve as a modifiable factor for preventing cardiovascular diseases. of the three outcomes (estimates=-20.23; 11.49; 20.81, ps<.001, respectively), indicating a U-shaped pattern where both low and high levels of stress reactivity were associated with poorer health, whereas moderate levels of daily stress reactivity predicted better health outcomes. The results suggest that some affective response to daily stressors can be beneficial.

EMBRACING THE DIVERSITY OF GRANDFAMILIES: UNDERSTANDING THE INFLUENCE OF CULTURE AND RACISM Chair: Nancy Mendoza Discussant: Loriena Yancura
In line with this year's conference theme, we examine diversity in different forms, such as racial, cultural, and familial diversity. We discuss the importance of diversity's influence on the experiences of grandfamilies and the impact it has on their members. Findings from a study with Latinx grandparent caregivers suggest that those raising grandchildren often do not view themselves as "raising," but instead "helping." Such findings highlight the importance of understanding cultural norms to appropriately tailor services and resources. In an exploration of the experiences of Korean custodial grandparents, findings demonstrated the influence of patrilineality and stigma surrounding divorce for Korean grandparent-headed families, indicating the importance of considering a grandparents' position in the family when providing services. In a study with custodial grandparents during the COVID-19 pandemic, researchers examined the role of racial discrimination on grandparents' depressive symptoms and access to health services. Results indicated a higher level of perceived racial discrimination was associated with more depressive symptoms. These results imply the need to address racial/ethnic disparities experienced by these caregivers. Similarly, in a study of emerging adults raised by grandparents, race moderated the influence of attachment on symptoms of racial discrimination. Findings support the use of interventions addressing attachment and ethnic identity to decrease symptoms of racial trauma in grandfamilies. Together these four studies reiterate the diversity of grandfamilies, enrich our understanding of these families, and encourage us to reimagine how to best serve them.

LATINX GRANDPARENTS RAISING GRANDCHILDREN: THE INFLUENCE OF CULTURAL NORMS Nancy Mendoza, and Cherrie Park, The Ohio State University, Columbus, Ohio, United States
Few studies have focused on the experiences of Latinx grandparents. Using a grounded theory approach, nine Latinx grandparent caregivers were interviewed in an effort to understand how the Latinx culture influences their experiences. Major themes that emerged during data analysis were related to reasons for caring. These included cultural norms of caring and reasons for the non-usage of services. Findings suggest Latinx grandparents tend to care for their grandchildren because they view it as part of their role as a grandparent. Thus, the biggest "barrier" to acquiring services could be that they do not view themselves as primary caregivers. These findings emphasize the need to understand the experiences of these grandparents and the importance of tailoring education and resources to this subgroup. This study provides professionals with a new way of looking at services for Latinx grandparents and opens the door to a new set of implications for practice. The COVID-19 pandemic has exacerbated racism against racial minorities and widened racial/ethnic disparities in health outcomes and access to health care services. This study analyzed cross-sectional data (N=219) collected from custodial grandparents via Qualtrics Panels in February 2022 to understand the role of race and perceived racial discrimination in contributing to custodial grandparents' depressive symptoms and access to health care services. Results indicated that a higher level of perceived racial discrimination was positively associated with grandparents' more depressive symptoms, but it was also associated with lower odds of custodial grandparents' access to health care services. Furthermore, racial/ethnic disparities in depressive symptoms and access to telemental health services among custodial grandparents were identified. Results imply the importance of addressing racial/ethnic disparities in depressive symptoms and access to health care services among custodial grandparents.

EXPERIENCES OF KOREAN GRANDFAMILIES: DIFFERENCES BETWEEN MATERNAL AND PATERNAL GRANDPARENTS Youjung Lee, Binghamton University, Binghamton, New York, United States
Grandparent-headed families in South Korea have been growing prominent in the country's cultural landscape. Approximately 153,000 Korean grandparent-headed households existed in 2015; this number is expected to double by 2035. This qualitative study explored Korean custodial grandparents' experiences of raising grandchildren and the cultural significance of multigenerational caregiving in Korea. Using a phenomenological approach, semistructured interviews with 22 custodial grandparents were conducted. Significant functions of patrilineality and stigma surrounding divorce for Korean grandparent-headed families were found. Considering the complicated cultural factors, social/family service programs must pay attention to the unique needs of grandparent-headed families and consider the circumstances related to grandparents' positions in the family (i.e., paternal vs. maternal grandparent caregivers). Korean government programs and policies could better help marginalized grandparent-headed families with an empowerment approach to help marginalized grandparent-headed families gain positive attitudes toward their caregiving situation.